Vase

Womb; receptivity; our ability to contain something and supporting its growth.

The meaning depends upon what vase you dream of, for vases are used for all type of purpose. Vases are often used to hold the ashes of a persons cremated body so look up Death – Who said it was the End?; as a point of  beauty in a home; because the vase has an illustration on it meaningful to the owner; for flower decoraton; because of past associations connected to the vase or a person. See Working With Dreams

With flowers: Sense of beauty and growth emerging out of receptivity; could be brothers and sisters. See: Cup.